Hay baler sleeve



June 17, 1952 G. ALMQUIST 2,600,827

HAY BALER SLEEVE Filed Aug. 25, 1947 2 SHEETSSHEET l ATTD R N EYE Patented June 17, 1952 UNITE STATES PATENT OFFICE HAY BALER SLEEVE Gus Almquist, Riverside, Calif.

Application August 25, 1947, Serial No. 770,463

' and adjust, inexpensive to manufacture and efficient in operation.

For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which Fig. 1 is a side elevational View of a hay baling machine with which the weight control device of the present invention is included.

Fig. la is an end elevational view of the control device with the hopper, wheels, and toggle elements at the opposite end of the baler omitted, and showing the attachment of the control device to a hay baler.

Fig. 2 is a side elevational view of the control device.

Fig. 3 is an enlarged front elevational view of the control device.

Fig. 4 is a longitudinal cross-sectional view of the control device taken on line 4-4 of Fig. 3, with the plunger thereof extended to it forward position.

Fig. 5 is a longitudinal cross-sectional view similar to Fig. 4 where the plunger has been forced rearwardly to operate the parts for re ducing pressure on the bale in the hay baler.

Fig. 6 is a transverse cross-sectional view taken on line 6-6 of Fig. 5.

Fig. 7 is an end elevaticnal view showing the discharge end of the baler with th wheels, hopper, and operating elements of the opposite end omitted.

Referring now to the figures, represents a hay baler having supporting wheels II and a hopper l2 by means of which hay is extended into a space to be gathered and compressed by a packing head l3 bearing the control device of the present invention. Extending from the hopper are top and bottom supports l4 and I5 adapted to receive the compressed hay and which are inclined toward one another to provide adequate friction for retaining the portions of the compressed hay as they are formed into a bale. These top and bottom parts are retained together by vertical rods I6. On the upper ends of the 1 Claim. (Cl. 100-23) rods are springs l'l adapted to bear against a horizontally disposed transverse member [8 and the under surfaces of adjusting nuts I9 on the upper ends of the vertical rods 16. The lower ends of the vertical rods l6 are mounted on the ends of a transverseshaft 20 extended across the end of the baler frame and positioned below the lower support l5. Toggle levers 2! are pivotally mounted on the ends of the transverse member 18 and coacting toggle levers 22 are pivotally mounted on the end of the shaft 20. The toggle levers 2| and 22 on the sides of the baler frame are pivotally connected by pins 50.

' The packing head l3 has a plunger 25 therein and the plunger is adapted for slidable movement. The outward movement of the plunger is limited by rods 26 which extend through the closed end of the packin head I3 and are retained against outward displacement by adjusting nuts 21. On the inner face of the wall of the packing head I3 is a threaded shaft 28 which is adjustable therethrough and is retained against outward displacement by a nut 29. This shaft 28 has a hole extending therethrough in which is extended a rod 3| which is secured as by welding to the inner side of plunger 25 as indicated at 32. A spring 33 surrounds the rod 34 and the inner end of the shaft 28 and is retained by an adjustable nut 34 which may be used to regulate the spring tension upon the plunger 25. The shaft 28 has a slot 35 therein into which is extended a lever 36 pivoted at 31 on a bracket 38 on the packing head and normally urged toward the end of the rod 3| by a spring 39 carried on the packing head. As a predetermined pressure is encountered by the plunger 25 as the packing head I3 is brought against the portions of the hay being baled between the parts I4 and [5, the lever 36 will be pivoted rearwardly to assume a position shown in Fig. 5 whereby to compress the spring 39 as the spring 33 on the plunger 25 is compressed thereby drawing the shaft 3! rearwardly. On the sides of the baler are bars 43 which are slidably mounted in brackets 4| and the outer ends are provided with upwardly extended ends 44 that are connected to the toggle levers 2i and 22 by the pin 50. The lower ends of the levers 22 being pivotally mounted on a transversely disposed shaft 20 and the upper ends of the levers 2| being pivotally mounted on the ends of the member l8, the supports orframe sections l4 and I5 will spread as the bars 43 are .moved rearwardly and contract as the bars are drawn forwardly. With the forward ends of the rods 43 held forwardly by the springs 41, the tog- 3 gle levers hold the extended ends of the members I4 and [5 together, and as the rods 43 are forced rearwardly by the lever 36 the ends of the mem bers l4 and 15 are spread compressing the springs l1 so that pressure on bales of hay held therein is reduced.

While various changes may be made in the detail construction, it shall be understood that such changes shall be within the spirit and scope of the :presentrinvention as definedbyjthe appendedclaim.

I claim:

In a hay baler, the combination which comprises an elongated hay baler frame, rectangular shaped in cross section and having upper and lower horizontally disposed sections extending therefrom, a packing head-mounted in one end of the frame, a packing plunger slidably mounted in the said packing head and having gu'iderods extended through the packing head for limiting stravelxof the :plunger' incthe'packing head, a censrtrally disposed tubular'shaft adjustably mounted in the packing head and having a-vertically disshaft to engage" the" control rod, and with the opposite end extended downwardly" from' the said -pacldng'rheadpa cross'zbar suspended from 'the' "frame: adjacent to ;the"::pac'king" head: and" 'posiaztionedrto be engagedrbyrt'he lower'end'of the said '"ilfivelifhOI'iZOIltMlYidlSDOSBd bars connected to" the member, vertical rods 'pivotally connected to and extended from the shaftpositioned "on the extended end of the lower section of the frame and extended through the said transverse member on the -upper section of the frame, adjusting nuts positioned on the upper ends of the vertical rods,

andsprings positioned between the said transverse member and nuts, said toggle levers providing reduced pressure on a bale of hay positioned between the extended sections of th baler frame when the bars are actuated by the lever on the packing head.

- GUS 'AlaMQUIST.

'iREFERENCES' CITED The following references are of recordin't'he file of this patent:

UNITED STATES BATENTS 

